Half to edward grace



2 Sheets-Sheet 1.

V(No'ModelL) o. H'. PARSHALL', Sr.

LUBRIGATUR No. 408,318. Patented Aug. 6, 1889.

INT/EW TOR 7M i WWQ* In@ 6 a M L I nys) L MT LMI m1 d WW .dttorney 2 Sheets-Sheet 2.

(No Model.)

0. H. PARSHALL, sr..

LUBRIGATOR.

Patented Aug. 6, 1889.'

WITWESSLXS' .dttorney Nirnn Srnrns artnr FFICI@ CHARLES il. PARSIIALL, SR, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE- I'IALF TO EDWARD GRACE, OF SAME PLACE.

LUBRlCATOR.

SPECIFICATION forming part of Letters Patent No. 408,318, dated August 6, 1889.

Application filed October 8, 1888. Serial hlo. 287.526. (No model.)

T0 all whom t may concern: A

Be it known that I, CHARLES H. PAESI-mici., Sr., a citizen of the United States, residing at Detroit, county of IVayne, State of .Michigarn have invented a certain new and useful Improvement in Lubricators; and I declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this speciiication.

My invention consists of the combinations of devices and appliances hereinafter specified, and more particularly pointed outin the claims. Y

In the drawings, Figure lis afront view in elevation of a lubricator of the type known as a single lubricator embod ying my invention. Fig. 2 is a side elevation of the same. Fig. 3 is a view in section and elevation of those parts above the oil-reservoir and pertaining to the type known asa double lubricator. Fig. 4 is a horizontal sectional view on the line a a: of the latter," and Fig. 5 a side elevation of the part shown in Fig. 4.

It is the purpose of my invention to producea lubricator which shall be simple and cheap in its construction, certain in its opera-- tion, and which obviates the necessity of piping or conduits within the condenser; also, in novel construction whereby an equalizing conduit or conduits are so arranged as to be readily accessible at any time without disturbing` the other parts of the lubricator.

In carrying out my invention7 A is the oilreservoir; B, the condenser of my improved lubricator. A pipe l) projects from the condenser down inside and nearly to the bottom of the oil-reservoir.

C is the conduit through which oil passes from the oil-reservoir to the nozzle C at the base of the sight-feed tube C2. The oil-conduit continues beyond the sight-feed glass, as shown at C3 in Figs. 4 and 5, and inds its exit at Cl.

D is an arm at the top of the lubricator. This is tapped above the condenser at D for the admission of a steam-pipe which leads to the boiler or somme of steam.

E is a removable screw-cap or dome, which constitutes a steam-chamber, and d is asteampassage which extends up to this steamchamber and down to the condenser and commimica-tes with the steam inlet D. E represents an equalizing-conduit, which leads from this steam-chamber down and through the arm D, as shown in Figs. 3 and 4, until it taps the oil-exit passage.

rlhe steam-inlet D (shown in Fig. 3) is below the steam-chamber E. Consequently, the condense-water not being able to rise above the steam-inlet D', it will beimpossible for water or oil to accumulate in the equalizingconduits E to a height sufficient to discharge it into the said steam-chamber. There is therefore no possibility of the oil feeding through one ot' the sight-feed glasses to go therefrom over through the steam-chamber E and off to the cylinder corresponding` with the other sight-feed glass; but, on the contrary, the oil fed through each feed-glass can find no outlet except through C4, and thence to its corresponding cylinder.

The exit CL is slightly below the steam-inlet- D; therefore the column of condense-Water may rise to the said inlet D and produce a preponderating column'to discharge the oil through the said exit C4. rIlhe equalizing-conduit E leads into the chamber O3 above the sight-feed glass. A valve F governs the outflow from the chamber C3 into the exit C".

G is a valve which governs the admission of water from the condenser into the oil-chamber and the discharge of oil from the latter to the sight-feed glasses.

The operation of this device is as follows: The valve G being closed, the oil-reservoirs are filled with oil. Steam is introduced into thecondenser and steam-chamber E. Condense-water fills the condenser and the sight-l feed glasses. The valves F are then opened, and also the valve 4Gr. Condense-water descending into the oil-reservoir causes the oil to pass upward to the sightteed glasses, and

thence in visible drops oit through the exitnassanes C4. Su 3 )ose the steam-inlet D is l e ll A connected with the steam-dome of the boiler or other source of constant pressure and the oil-exit passages connected with the dry-pipes or tallow-pipes of a locomotive. In this condition steam-pressure will be maintained constant at both ends of the lubricator so long as steam is admitted to the engine-cylinders. As soon, however, as steam is cut oft from said cylinders-as, for instance, when approaching a station or when upon a downgrade-the lubricator wil-l at such times have a pressure within the condenser and no pressure at the oil-exit passage. To remedy this difficulty, the equaliZing-conduits. E are cmployed. They serve to tap the steam-pressure at the head of the condenser and lead the same to the space above the sight-feed glasses, thus equalizing the pressure at the two ends of the lubricator. Heretofore these equalizingconduits have eitherbeen located entirely outside o'f the body of the lubricator, or else have been located within the condenser and top wall of the oil-reservoir. In the former case, houever, they require labor outside of the shop at the place where the lubricator is put into use to properly locate them, and in the latter case, inasmuch as these conduits were steamconduits, they serve to maintain the temperature of the condenser at so high a degree as to impair its condensing properties. In my device, however, these equalizing-tubes are located entirely above the condenser and above the steam-inlet passage. So, also, the dome,bcing made in the form of a removable screw-cap, affords ready means at any time for gaining access to and clearing out the said equalizing-conduits, should their operation become impaired. Plugs II are employed at the upper end of each of the glass tubes, by removing which the tubes may be taken out or new ones inserted. This construction also obviates the necessity of any tubes inside of the condenser or oil-reservoir, except the single tube that projects downward from the condenser to the bottom of the oil-chamber, thus obviating a great source of annoyance. A vent I is provided for permitting an escape of air as the reservoir is being lled with oil,

and likewise an admission of air as condense- 3. The combination of the condenser, the

dome, a steam-inlet pipe, one or more equaliZing-conduits, one or more sight-feed glasses located at the side or sides of the condenser, the oil-reservoir, one or more oil-exit conduits, and the valves F and G, substantially as described.

Ll. In a lubricator, the combination, with the steam-admission and oil-exit conduits, of equaliZing-conduits terminating in a steamdome above the condenser, said dome made in the form of a screw-cap adapted to be readily removed for gaining access to said equalizing-conduits, substantially as and for the purposes described.

In testimony whereof I sign this specification in the presence of two witnesses.

CHARLES Il. PARSIIALL, SR.

Ni/Titiiesses:

M. B. ODOGHERTY, JOHN E. WILEs. 

